Enye yezona zinto ziphezulu zobhedu ezisekelwe kwi-alloys ezikhoyo kwiimarike namhlanje yi-beryllium yobhedu, eyaziwa ngokuba yi-spring copper okanye i-beryllium bronze. Amabakala orhwebo obhedu lwe-beryllium aqukethe i-0.4 ukuya kwi-2.0 yeepesenti ye-beryllium. Umlinganiselo omncinci we-beryllium ukuya kwi-copper udala intsapho ye-alloys ephezulu yobhedu enamandla aphakamileyo njengentsimbi ye-alloy. Eyokuqala kwiintsapho ezimbini, i-C17200 kunye ne-C17300, iquka amandla aphezulu kunye ne-conductivity ephakathi, ngelixa intsapho yesibini, i-C17500 kunye ne-C17510, inikezela nge-conductivity ephezulu ngamandla aphakathi. Iimpawu eziphambili zezi ngxubevange yimpendulo yazo ebalaseleyo kunyango lokuqina kwemvula, ukuhanjiswa kwe-thermal okugqwesileyo, kunye nokuchasana nokuphumla koxinzelelo.